Edelbrock 29086 User Manual

Victor Jr. LS1 EFI Intake Manifold

for GM 5.7L LS1 Style V8 Engines

INSTALLATION INSTRUCTIONS

PLEASE study these instructions carefully before installing your new Intake Manifold.  If you have any questions or problems, do not
hesitate to contact our 

Technical Hotline at: 1-800-416-8628, from 7am-5pm PST, Mon-Fri, or via e-mail at:

Edelbrock@Edelbrock.com.  Please fill out and mail your warranty card.  Remember to include the model number of this product

in the “Part #____” space.  Thank you.

CAUTION: Make sure the vehicle’s battery has been disconnected and that the vehicle is supported on a level surface to prevent
any possibility of the vehicle moving during the installation procedure.

•

MANIFOLD: The single plane Victor Jr. LS1 Intake Manifold is intended for racing and engine swap applications.  Part 
# 29086 includes fuel rails.  A separate fuel rail kit may also be purchased under part # 3638.

•

EGR SYSTEM: This manifold has no provision for EGR (exhaust gas recirculation) equipment.  EGR systems are used on most
1972 and later model vehicles, up to certain GVWs.  Check local laws for requirements.  This manifold is not considered to be a

direct replacement part.

•

ACCESSORIES & INSTALLATION ITEMS: Major recommendations are listed below.  However, because this manifold system is
intended for engine swaps into a variety of vehicles, some customization may be required.

ITEM

NOTES

PART NUMBER AND DESCRIPTION

Throttle Body

Standard Square-Bore Style Base

P/N 3878 - With standard GM/Delphi IAC
P/N 38783 - With Mototron/Hitachi Linear Style IAC

Fuel Rail Kit

Stock Injector Angles

P/N 3638 - Includes Hold Down Brackets

Headers

1-3/4” - 1-7/8” Step, Victor Series

Various.  See Catalog For Details

Camshaft

Developed for Carbureted Applications

P/N 2215 - 220° Int./224° Exh. @ .050”, .510” Valve Lift
P/N 2216 - 230° Int./237° Exh. @ .050”, .540” Valve Lift

•

KIT CONTENTS:  29085 and 29086

QTY.

Description

❑

1

Intake Manifold

❑

1

MAP Sensor Bracket (For LS1 Style Sensor)

❑

1

1/8”NPT to ¼” Hose Fitting (For MAP)

❑

.75 ft

¼” I.D. Vacuum Hose (For MAP)

❑

2

Cable Bracket (Large Opening)

❑

2

Cable Bracket (Small Opening)

❑

1

GEN III EFI Throttle Bracket Base

❑

4

6mm x 1.0 x 12mm Serrated Flange Hex Bolt

❑

4

6mm x 1.0 Serrated Flange Hex Nut

❑

10

6mm x 50mm Hex Head Capscrew

❑

10

¼” AN Washer

29086 Additionally Includes:
QTY.

Description

❑

2

Machined Fuel Rail

❑

4

Fuel Rail Stand

❑

4

¼”-20 x 1-¼” Hex Head Bolt

❑

4

¼”-20 Hex Nut

❑

8

¼” AN Washer

❑

4

¼” Lock Washer

❑

4

¼”-20 x ½” Socket Head Bolt

10

4

1

5

8

9

3

2

6

7

3/8” NPT

1/8” NPT

Front